ELECTRICALLY-DRIVEN WORK MACHINE, BOND MAGNET AND MOTOR

摘要

PROBLEM TO BE SOLVED: To provide a technology capable of more accurately detecting a rotational position of a rotor in a motor of an electrically-driven work machine.SOLUTION: The electrically-driven work machine comprising the motor is disclosed. The motor comprises the rotor including a bond magnet. In the electrically-driven work machine, the bond magnet is formed by injection molding and magnetized in such a manner that magnetic poles of S poles and N poles appear alternately in a circumferential direction. In the electrically-driven work machine, a weld line corresponding part that is formed in the bond magnet by injection molding is disposed while being deviated from boundaries of the magnetic poles in the circumferential direction.SELECTED DRAWING: Figure 8